States ›Pennsylvania ›Cumberland County ›South Middleton

South Middleton, PA Tap Water Quality 2026

Water quality report for South Middleton, PA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at South Middleton's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: South Middleton Twp Water Auth PWSID: PA7210050 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.80 ppb, 12% of the action level and no violations are open. No PFAS was detected.

A

South Middleton earns an A for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.80 ppb — 12% of the federal action level
PFAS tested, none detected
22 violations since 2015, 1 health-based
No violations currently open
South Middleton's lead level vs. all Pennsylvania community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.80 ppb — 12% of the federal action level
✓ Lower lead than 75% of Pennsylvania utilities
Population Served
11627
~4486 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
22 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
12% of EPA action level
1.80 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.80 ppb, 12% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Consumer Confidence Rule OTHER — — 2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2022 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022 Resolved
Asbestos MONITORING AND REPORTING — 7 MFL 2022 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2021 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2020 Resolved
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2020 Resolved
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2020 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

22 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility South Middleton Twp Water Auth
PWSID PA7210050
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 11,627
Service connections 4,486
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is South Middleton tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.80 ppb, 12% of the action level.
Does South Middleton water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to South Middleton? ▼
South Middleton Twp Water Auth (PWSID PA7210050), one of 4 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2024-04-17. No significant deficiencies were recorded.

What Should South Middleton Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Pennsylvania

Hampden, Pa Tap Water Quality 2026 Cumberland Upper Allen, Pa Tap Water Quality 2026 Cumberland East Pennsboro, Pa Tap Water Quality 2026 Cumberland Carlisle, Pa Tap Water Quality 2026 Cumberland Lower Allen, Pa Tap Water Quality 2026 Cumberland Silver Spring, Pa Tap Water Quality 2026 Cumberland